发明申请
- 专利标题： Degradation estimating apparatus for unburned component adsorption catalyst
- 专利标题（中）： 未燃组分吸附催化剂的降解估算装置
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申请号： US11407186申请日： 2006-04-20
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公开(公告)号： US20060236678A1公开(公告)日： 2006-10-26
- 发明人: Hiroshi Tanada , Yasuyuki Hatsuda , Takehisa Fujita , Takaharu Hashimoto , Keisuke Tashiro , Mizuki Anai , Mitsutaka Kojima , Masayuki Yamashita , Katsuhiko Miyamoto
- 申请人： Hiroshi Tanada , Yasuyuki Hatsuda , Takehisa Fujita , Takaharu Hashimoto , Keisuke Tashiro , Mizuki Anai , Mitsutaka Kojima , Masayuki Yamashita , Katsuhiko Miyamoto
- 专利权人： Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- 当前专利权人： Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- 优先权： JP2005-125394 20050422
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; F01N7/00
摘要：
The present invention relates to a degradation estimating apparatus for an unburned fuel component adsorption catalyst, which is connected with an internal combustion engine and has an unburned fuel component adsorbent and an oxygen storage component. The apparatus includes a degradation estimating unit for making estimation for a degradation of the unburned fuel component adsorption catalyst on the basis of a first term and a second term. The first term that is from the cancellation of the fuel supply to detecting a variation of an upstream side air-fuel ratio occurring due to the increase of the reductant quantity in the exhaust gas. The second term that is from the cancellation of the fuel supply to detecting of a variation of the downstream side air-fuel ratio due to an increase of the reductant quantity.
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